Create unique context for each item in a collection?

[samstickland]

We have an unusual use cache where having this functionality would be useful to us:

module Draper
  class CollectionDecorator
    module UniqueContext
      def decorate_item(item)
        item_decorator.call(item, context: context.clone)
      end
    end

    prepend UniqueContext
  end
end

As you can see we've currently monkey patched. Would there be any interest in a PR?